EP 0558174 B1 19970604 - New softening agents for recycling asphalt pavement
Title (en)
New softening agents for recycling asphalt pavement
Title (de)
Neue Weichmacher für die Wiederverwendung von Asphaltstrassendecken
Title (fr)
Nouveaux agents adoucissant pour recyclage des revêtements bitumineux
Publication
Application
Priority
- CA 2034260 A 19910116
- US 81585692 A 19920102
Abstract (en)
[origin: EP0558174A1] A novel asphaltic composition is provided herein. The composition includes comminuted aged asphaltic pavement material and an effective amount, e.g., from about 2% to about 15% by weight, of a blend of a soft asphalt cement, and/or a conventional asphalt cement, and/or a cutback asphalt, in combination with a nitrogen-containing, adhesion-improving, anti-stripping agent. Such agent is a sewage sludge-derived oil, or a fraction thereof, such sewage sludge-derived oil comprising a mixture of saturated aliphatic hydrocarbons, monoaromatic hydrocarbons, diaromatic hydrocarbons, polyaromatic hydrocarbons, polar compounds and basic, pyridene-soluble compounds, having the following elemental chemical composition: nitrogen, about 3.4% to about 5% by weight; oxygen, about 5.8% to about 6.9% by weight; sulfur, about 0.3% to about 0.8% by weight; hydrogen, about 9.7% to about 10.4%, and carbon, about 76.9% to about 79.8%.
IPC 1-7
IPC 8 full level
C08L 95/00 (2006.01)
CPC (source: EP)
C08L 95/00 (2013.01)
C-Set (source: EP)
Designated contracting state (EPC)
AT BE CH DE FR GB IE IT LI NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 93300023 A 19930104